Ericsson MINI-LINK TN R3 ETSI - Page 34

MINI-LINK TN R3 ETSI
9978
63xE1
Electrical or
optical interface
nxE1
LTU 155
LTU 16/1
nxE1
NPU1 B
nxE1
LTU 16/1
TDM Bus
Figure 30 An example of how to use the STM-1 interface
3.5.2 LTU 155
There are three versions of the LTU 155:
LTU 155e
Provides one electrical interface (G.703), mapping 63xE1.
LTU 155e/o Provides one optical interface (short haul S-1.1) and one electrical
interface (G.703), mapping 63xE1. Note: only one at a time.
LTU B 155
Provides one optical interface (short haul S-1.1) and one electrical
interface (G.703), mapping 21xE1. Note: only one at a time.
The LTU 155 fits in all AMM types.
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/1555-CSH 109 32/1-V1 Uen B 2007-09-14